The first layer is concerned with the controllers and physical equipment which is used to control
devices. These are popularly known as “Things” in the Internet of Things jargon. These devices
send and receive data. This data can include a description of the device status or information
from the sensors. This information might be then processed by a local controller and trans-
mitted with the help of NFC. When IoT devices are connected via a network, they can convert
analog data to digital data.
Layer 2 (Connectivity)
This layer is concerned with the relay of data which is communicated between devices via mul-
tiple dierent ...
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